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What is the shock in the front for ?

1788 Views 6 Replies 4 Participants Last post by  simoncharles
Hi,

Looking at the front of the bike under the headlight and behind the front tire I see what looks like a small shock absorber (the kind used to keep the hood of the car up). Part of it is sticking out.

What is the function of this shock absorber? Is it to kill the engine in case of a frontal collission ?

Thank you.
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Steering Damper. It stops oscillations of the steering if they start so they do not become a "Tank Slapper".

It has no affect if the steering is moved slowly, nor for the first few degrees of movement if moved fast.
Can you explain that in Plain english please?

What does "Tank slapper" mean ?

And how does the shock which does not touch anything (in the front) do anything?

Thanks.
It is a steering damper not a suspension component. It is supposed to dampen oscillations of the handlebars in extreme circumstance. This damping stops what is called a "tank slapper" ...knees banging against tank ...motorcycle out of control.
BMW_forever said:
Can you explain that in Plain english please?

What does "Tank slapper" mean ?

And how does the shock which does not touch anything (in the front) do anything?

Thanks.
Tank Slapper is when the oscillation becomes so great the the handle bars hit the tank.

If you have someone sit on the back seat with the LT on the centerstand to get the front wheel off the ground, then standing by the bike move the bars back and forth, first relatively slowly, and then really fast. You will then see what that damper does. When you move them fast, they move easily the first couple inches, then the damper activates and makes the movement much harder. That stops unintended fast movement of the bars, which can be uncontrollable at the suspension's natural frequency, around 40 MPH.
Thank you for the clarifications, I now understand it better.

Cheers,
AJ.
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